
REMEDIAL SEMESTER GANJIL 2024
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Suprihatin, S.pd.
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pernyataan yang benar tentang reaksi endoterm adalah….
Entalpi awal lebih besar daripada entalpi akhir dan ΔH > 0
Entalpi awal lebih besar daripada entalpi akhir dan ΔH < 0
Entalpi awal lebih kecil daripada entalpi akhir dan ΔH < 0
Entalpi awal sama dengan entalpi akhir dan ΔH = 0
Entalpi awal lebih kecil daripada entalpi akhir dan ΔH > 0
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui persamaan reaksi sebagai berikut :
CS2 + 3O2 --> CO2 + 2SO2 ΔH= -1110 kJ
CO2 --> C+O2 ΔH= +394 kJ
SO2 --> S+O2 ΔH= +287 kJ
Maka, kalor pembentukan CS2 adalah …
+ 142 kJ
- 142 kJ
+ 419 kJ
- 419 kJ
+ 906 kJ
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui data energy ikatan sebagai berikut
H – H = 104 kJ
Cl – Cl = 58 kJ
H – Cl = x kJ
Jika reaksi pembentukan HCl dari unsur-unsurnya melepaskan kalor sebesar 21 kJ/mol, maka harga x adalah …
204 kJ
102 kJ
82 kJ
51 kJ
18 kJ
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Setiap kenaikan 10oC laku reaksi tercatat lebih cepat 2 kali semula. Pada suhu 10oC reaksi berlangsung selama 10 menit. Maka pada suhu 30oC, reaksi akan berlangsung selama …
7,5 menit
5 menit
2,5 menit
1 menit
20 menit
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Laju reaksi yang dipengaruhi oleh konsentrasi ditunjukkan oleh nomor …
1 dan 2
1 dan 3
2 dan 4
3 dan 4
4 dan 5
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
V = k [H2] [I2]
V = k [H2]2 [I2]
V = k [H2] [I2]2
V = k [H2]2
V = k [I2]
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 11,2 gr batu kapur dianalisis. Hasilnya menunjukkan 10,40 gr CaCO3, 0,61 gr MgCO3, dan endapan lainnya. Berapa kadar kalsium karbonat dalam batu kapur itu ?
54 persen
89 persen
80 persen
87 persen
93 persen
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